We are having multiple problems with the changes to the way LTI Pro handles alternative hosts since the December 2020 update.
In addition to these two issues:
We are now seeing some users added via the Manage alternative hosts menu not properly being added as alternative hosts. For one example, we added 13 addresses via the vertical “…” -> Manage alternative hosts section, but only 10 were actually added to the meetings in the LTI Pro, and as a result, when those three other users went to start the meetings, they were told to wait for a host even though they were defined as alternative hosts. Even after I manually added the missing addresses to the meeting, those three could not start them from the LTI Pro tool in Blackboard.
Is there a limit to how many users can be added as alternative hosts? I see in the November 2020 release notes the limit should be 60, but in practice, that appears to not be the case.
All of these issues are causing major problems for course delivery at our university.